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Título: | Monitoring and environmental risk assessment of pesticide residues and some of their degradation products in natural waters of the Spanish vineyard region included in the Denomination of Origin Jumilla |
Autor: | Herrero Hernández, Eliseo CSIC ORCID; Simón-Egea, Ana B.; Sánchez Martín, M. Jesús CSIC ORCID ; Rodríguez Cruz, M. Sonia CSIC ORCID ; Andrades, M. Soledad CSIC ORCID | Palabras clave: | Multi-residue analysis Pesticides Natural waters Degradation products Vineyards |
Fecha de publicación: | 2020 | Editor: | Elsevier | Citación: | Environmental Pollution 264: 114666 (2020) | Resumen: | Water pollution by pesticides used in agriculture is currently a major concern both in Spain and in Europe as a whole, prompting the need to evaluate water quality and ecological risk in areas of intensive agriculture. This study involved monitoring pesticide residues and certain degradation products in surface and ground waters of the Denomination of Origin (DO) Jumilla vineyard area in Spain. Sixty-nine pesticides were selected and evaluated at twenty-one sampling points using a multi-residue analytical method, based on solid-phase extraction (SPE) and analysis by liquid chromatography coupled with mass spectrometry (LC-MS), providing reliable results. Twenty-six compounds from those selected were detected in the samples analyzed (eleven insecticides including one degradation product, nine herbicides, and six fungicides) and fifteen of them were found in concentrations over 0.1 μg L−1 (upper threshold established by the EU for pesticides detected in waters for human consumption). Indoxacarb was present in more than 70% of the samples, being the most frequently detected compound in water samples. Some pesticides were ubiquitous in all the water samples. Ecotoxicological risk indicators, toxic units (TUs) and risk quotients (RQs), for algae, Daphnia magna and fish were calculated to estimate the environmental risk of the presence of pesticides in waters. The compounds with the highest risk were the herbicides pendimethalin, with RQ values > 1 for the three aquatic organisms, and diflufenican, posing a high risk for algae and fish, and the insecticide chlorpyrifos, with a high risk for Daphnia magna and fish. The ∑TUi determined for water at each sampling point posed only a high risk for the three aquatic organisms in a sample. These results are important for considering the selection of pesticides with less environmental risk in intensive agricultural area | Descripción: | 44 páginas, 3 figuras, 3 tablas, 3 tablas suplementarias, 2 figuras suplementarias. -- The final version is available at http://www.elsevier.com | Versión del editor: | http://dx.doi.org/10.1016/j.envpol.2020.114666 | URI: | http://hdl.handle.net/10261/217424 | DOI: | 10.1016/j.envpol.2020.114666 | ISSN: | 0269-7491 | E-ISSN: | 1873-6424 |
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